Of interest is how the name describes the vehicle. The antenna does resemble the business end of a Lacrosse stick.
Russian Telescope Images Top-Secret NRO Lacrosse (Subscription Required)
Aviation Week & Space Technology
07/09/2007, page 28
Top-secret U.S. space-based radar imaged by Russian telescope
Printed headline: Lacrosse Revealed
After 20 years of secrecy, the overall design of the 15-ton U.S. National Reconnaissance Office Lacrosse space-based radar and its remarkable 25-ft.-dia. imaging radar antenna are revealed in images of Lacrosse-2 at 400 mi. altitude taken by a Russian military ground-based telescope.
The images (above) were taken by a 28-channel adaptive optical system at the Russian Altay Laser/Optical Center. The site is one of several operated by the Science Research Institute for Precision Instrument Engineering. The line-of-sight distance from the Russian optics to the Lockheed Martin Lacrosse was more than 500 mi.
Views taken by a Russian ground-based telescope of a 15-ton NRO Lacrosse space-based imaging radar satellite reveal its secret 25-ft. mesh synthetic aperture radar antenna, developed by Harris Corp. near Cape Canaveral.Credit: RUSSIAN SCIENCE RESEARCH INSTITUTE FOR PRECISION INSTRUMENT ENGINEERING
No unclassified imagery of a complete Lacrosse has ever been released by the NRO in nearly 20 years of radar satellite operations. The design matches the drawing at center. Credit: CHARLES P. VICK/GLOBALSECURITY.ORG